import java.math.BigInteger;

public class CFactorial {
	public static void main( String[] args ) {
		int A = 0xFFFFFF;
		int B = 0xFFFFFF;
		int C = A * B;
		//System.out.println( C );
		//System.out.println( Factorial( BigInteger.valueOf( 100 ) ).toString() );
		System.out.println( 0.5 * 1 );
	}
	
	private static BigInteger Factorial( BigInteger N ) {
		if( N.equals( BigInteger.ONE ) ) return BigInteger.ONE; else return N.multiply( Factorial( N.subtract( BigInteger.ONE ) ) );
	}
}